Update duckdb index files

.gitattributes

@@ -16,3 +16,4 @@ task4-phone-address/train/index.duckdb filter=lfs diff=lfs merge=lfs -text
 task4-phone-address/validation/index.duckdb filter=lfs diff=lfs merge=lfs -text
 task5-full-dialogs/TESTOOV/index.duckdb filter=lfs diff=lfs merge=lfs -text
 task5-full-dialogs/test/index.duckdb filter=lfs diff=lfs merge=lfs -text
+task5-full-dialogs/train/index.duckdb filter=lfs diff=lfs merge=lfs -text

task5-full-dialogs/train/index.duckdb

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9ab95014b3d3783cd639ec83eecebf4f7eed4b9850607ef8112f98bb13dc87e9
+size 1847296